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GB541029A - Improvements in crystal-controlled electric oscillators - Google Patents

Improvements in crystal-controlled electric oscillators

Info

Publication number
GB541029A
GB541029A GB1039540A GB1039540A GB541029A GB 541029 A GB541029 A GB 541029A GB 1039540 A GB1039540 A GB 1039540A GB 1039540 A GB1039540 A GB 1039540A GB 541029 A GB541029 A GB 541029A
Authority
GB
United Kingdom
Prior art keywords
crystal
valve
grid
resistance
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1039540A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1039540A priority Critical patent/GB541029A/en
Publication of GB541029A publication Critical patent/GB541029A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube

Landscapes

  • Oscillators With Electromechanical Resonators (AREA)

Abstract

541,029. Valve generating circuits. CALVERT, R. June 14, 1940, No. 10395. [Class 40 (v)] A crystal controlled oscillator has a crystal connected in a feed-back circuit between the cathode of a cathode follower and the grid. In Fig. 3 the triode V1 is arranged as a cathode follower by the provision of resistance R1. A controlling crystal K is connected to the grid of V1, through amplifiers V2, V3 the function of which is to make up the voltage loss in the crystal and valve VI, without introducing substantial phase shift. In Fig. 4 to prevent intermodulation of harmonics produced by the limiting action of the circuit, an A.V.C. is supplied by applying the output from V3 to an amplifier V4 and diode V5 which applies an A.V.C. potential to V2. V4 acts as a separator valve and the output of the oscillator is taken from O, E. The phase lag due to V2, V3 may be corrected by a condenser connected across resistance R5 and the frequency may be adjusted by condensers C1, C2.
GB1039540A 1940-06-14 1940-06-14 Improvements in crystal-controlled electric oscillators Expired GB541029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1039540A GB541029A (en) 1940-06-14 1940-06-14 Improvements in crystal-controlled electric oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1039540A GB541029A (en) 1940-06-14 1940-06-14 Improvements in crystal-controlled electric oscillators

Publications (1)

Publication Number Publication Date
GB541029A true GB541029A (en) 1941-11-10

Family

ID=9967027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1039540A Expired GB541029A (en) 1940-06-14 1940-06-14 Improvements in crystal-controlled electric oscillators

Country Status (1)

Country Link
GB (1) GB541029A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432516A (en) * 1943-12-30 1947-12-16 Bell Telephone Labor Inc Keyed pulse generator
US2683252A (en) * 1950-05-25 1954-07-06 Bendix Aviat Corp Crystal controlled angle modulation system
US2695960A (en) * 1951-04-05 1954-11-30 Bell Telephone Labor Inc Cathode crystal coupled oscillator
US2889459A (en) * 1954-12-08 1959-06-02 Ericsson Telefon Ab L M Negative feed-back thermistor regulated oscillator
US3179902A (en) * 1961-10-24 1965-04-20 Sperry Rand Corp Crystal controlled transistor oscillator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432516A (en) * 1943-12-30 1947-12-16 Bell Telephone Labor Inc Keyed pulse generator
US2683252A (en) * 1950-05-25 1954-07-06 Bendix Aviat Corp Crystal controlled angle modulation system
US2695960A (en) * 1951-04-05 1954-11-30 Bell Telephone Labor Inc Cathode crystal coupled oscillator
US2889459A (en) * 1954-12-08 1959-06-02 Ericsson Telefon Ab L M Negative feed-back thermistor regulated oscillator
US3179902A (en) * 1961-10-24 1965-04-20 Sperry Rand Corp Crystal controlled transistor oscillator

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